EXPLANATION OF PLATES, VOL. XIII. 253 



FIGURE PAGE 



PLATE 71. 



72-75. Amphidromus quadrasi Hid. var. Shepperd, del.. . 229 



76. Amphidromus quadrasi solidus Fult. After Fulton, . ~2&0 



77. Amphidro-mus quadrasi Hid. J. de C., 1887, . . .229 



78. Amphidromus quadrasi Hid. Shepperd, del., . . . 229 



79. 80. Amphidromus quadrasi dubius Fult. After Fulton, . 231 

 81, 82, 83. Amphidromus quadrasi dubius Fult. Shepperd, del., 231 

 84-91. Amphidromus quadrasi versicolor Fult. Shepperd, del., 230 



PLATE 72. 



15. Placostylus (Diplomorpha) layardi Braz. Shepperd, del., 11& 



6. P. (D.) brazieri Hartm. Shepperd, del., . . .116 



7,8. P. (D.) peasei Cox. Shepperd, del., . . . .117 



9. P. (D.) peasei Cox. P. Z. 8., 1871, . . . .117 



10-12. P. (D.) delatouri Hartm. Shepperd, del., . . . 117 



13, 14. P. (D.) coxiana Pils. Shepperd, del., . . .118 



15. P. (D.) ruga Hartm. Proc. A. N. S., 1890, . . .119 



16. P. (D.) bernieri Hartm. Proc. A. N. S., 1890, . . 119 



17. P. (D.) layardi Braz. Apex. Shepperd, del., . .14, 115 



18. P. hargravesi Cox, Apex. Pilsbry, del., . . . 93 



DATES OF ISSUE OF VOLUME XIII. 



Part 49, pp. 1-64. plates 1-15, April 23, 1900. 

 Part 50, pp. 65-112, plates 16-34, August 3, 1900. 

 Part 51, pp. 113-176, plates 35-48, October 17, 1900. 

 Part 52, pp. 177-253, plates 49-72, December, 1900. 

 Title-page, Preface and Contents, December, 1900. 



